Slab-sawing machine



(No ModelQ J. B. LEMIBUXA SLAB SAWING MACHINE.

210.290,58@l Patented Dec. 18,1888l Tag/.-

Q .d "gip El n? n Z 'a' V UNITED STATES PATENT Fries.

JOHN BT. LEMIEUX, OF MUSKEGON, MICHIGAN.

SLAB-SAWING :vulcan-mala.r

SPECIFICATION forming' part of Letters Patent No. 290,589, datedDecember 18, 1883. Application iiled October 16,1883. (No model.)

To all whom it may concern.:

Be it known that I, JOHN Br. LEMIEUX, of Muskegon, in the county ofMuskegon and State of Michigan, have invented new and usefulImprovements in Slab-Cutting Machines; and I do hereby declare that thefollowing is afull, clear, and exact description thereof, referencebeing had to the accompanying drawings, which form a part of thisspecification.

This invention relates to certain new and useful improvements in edgingand slab cutters, especially designed for use in saw-mills where it isdesired to cut su ch edgings of slabs into uniform lengths.

The invention consists in the peculiar construction of the parts andtheir combination, as more fully hereinafter described.

Figure l is a plan viewof the top of my improved machine. Fig. 2 is anend elevation of the same, or a vertical cross-section at any pointbetween the two ends.

In the accompanying drawings, which 4form a part of this specification,A A represent cylinders squared upon portions of the periphery, so thatin cross -section such cylinder through the center .would be aparallelogram, and by cutting away the necessary portions to make suchparallelogram hooks or ledges a, eX- tending the whole length of thecylinders, are formed. These cylinders are journaled side by side in asuitable frame carrying bearings B, so that there is but a smallinterval between such cylinders.

C represents a table, the oor of the mill, or any suitable carriers,upon which the slabs or edgings fall on beingl cut, whence they falldown the inclined plane D. The cylinders are provided with gears E,meshing together, and driven by a gea-r, F, meshing with one of thegears E, and secured to a counter-shaft, which is driven from anysuitable source of power.

H is an arbor, suitably journaled immediately over the center of, theframe which carries the cylinders, and upon this arbor are secured atproper intervals circular saws I, and the saw-arbor is driven by meansof a pulley, J, on one end of said arbor from any suitable source ofpower, the whole being so arranged that slabs or edgings sliding downthe inclined planes D are taken up by the hook-ledges a, and by therotation of the cylinders A carried into contact with the saws I, whichcut such edgings or slabs into the proper lengths, and in the furtherrotation of the cylinders they are discharged in the interval betweensuch cylinders upon a carrier, K, to any desired part of the mill oryard.

In the drawings the device is shown with two cylinders, two iioors, andtwo inclined planes. It is evident, however, that one of the cylinders,floors, and inclined planes may be dispensed with, and the machine isonlyrequired to be made double, as shown, when a large amount of work isto be presented to it. The single machine, with one cylinder, oneinoline, and one door, will perform one-half the work that will beperformed by the device as presented.

It is obvious that the cylinders A A may be constructed in various waysand of various forms without departing from the spirit of my` invention,so long as means are provided by which such cylinders in their rotationwill take the slabs from the inclined ways and present and hold them tothe saws to be out into desired lengths.

1What I claim as my invention is- I. In a slab-cutting machine, thecombination of the saws I with the revolving cylinders A, having ledgesa formed thereon, constructed to take the slabs and present them to theaction of the saws, substantially as described.

' 2. In combination, the inclined plane D, revolving cylinder A, havingledges formed thereon arranged to take the slabs from the inclinedplane, and circular saws I, constructed to operate on the slabssupported by the cylinder, the acting parts being driven from anysuitable source of power, arranged and operating substantially as andfor the purposes described.

J OHS BT. LEMIEUX.

Witnesses:

BEAD Davies, W. E. Srrcniynr.

